I used to enjoy aubergines but haven't for a few years now. However, when I did, the classic recipe was Italian style - sliced aubergine, grilled then layered in a gratin dish with a tomato and basil sauce, mozzarella and Parmesan. Bake till heated thru and the top layer of Parmesan is crusty. If you slice the aubergine lengthways you can roll it round tomatoes, basil and mozzarella then spear it with a cocktail stick, top with a cheesy sauce or grated Parmesan and bake.
Tagine made with prunes and almonds and substituting aubergine chunks for lamb is also very good.